I always thought Molly/Ecstasy turned you into a blissed out hug-loving moron, but apparently it turns us into blissed out racists instead. From VICE:
You don’t have a lot of time for rational thought after dropping a pill. Three Mitsis in and you’re almost entirely preoccupied with finding out what people’s scarves feel like, or busy trying to focus on literally anything through your rapid-fire flicker-eyes. So you’d have thought that, amid all the euphoria and heart palpitations, there surely wouldn’t be space to get hung up on the ethnicity of everyone around you.
However, it turns out that the brain’s biochemistry during a blissed out club night might not be too dissimilar from a rally during the EDL’s golden years. This is because of a hormone called oxytocin, which has been described by many as “the love hormone” or the “cuddle drug”. The hormone has been linked to developing trust between mother and child during breast feeding, and between partners after intercourse.